oregon dot AWS

Chris Harris, P.E. Asst. Pavement Quality Engineer

Demographics of my State  18,200 lane-miles  17,150 LM asphalt  1075 composite  750 LM concrete  650 CRCP, 100 JCP  1,250 LM Chip Seal  50 gravel

(excludes frontage & connections)

Pavement Budget  $119 million/year Pavement Budget     

(2010-2013 avg)

$12 million/yr Chip Seals $44 million/yr Single lift Paving $32 million/yr Rehabilitation $23 million/yr Reconstruction $8 million/yr set aside for stand alone safety features and signs

Experiences with In-Place Recycling  In the past 20 years – Cold in place & Hot in place  We are finding that they only last one preservation cycle (approx. 15 years) before needed to be replaced.

 ODOT has constructed 2 cold in place recycle projects

in the last 5 years (w/HMAC overlay)  There are 3 full depth reclamation (cement stabilized)

jobs in design

Recycle Project Costs  OR140: Modoc Billy Cr – Fish Hole Cr (2009)  Total cost $5.5 million 

CIR $3/sq. yd. + Hydrated Lime $235/ton + Recycle agent $620/ton

 OR39: Merrill NCL – California State Line (2014)  Total cost $2.9 million 

CIR $3.74/sq. yd. + Hydrated Lime $327/ton + Recycle Agent $635/ton